GB799531A - Improvements in or relating to spark machining - Google Patents

Improvements in or relating to spark machining

Info

Publication number
GB799531A
GB799531A GB3244055A GB3244055A GB799531A GB 799531 A GB799531 A GB 799531A GB 3244055 A GB3244055 A GB 3244055A GB 3244055 A GB3244055 A GB 3244055A GB 799531 A GB799531 A GB 799531A
Authority
GB
United Kingdom
Prior art keywords
field
electrode
gap
machining
resistors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3244055A
Inventor
Robert Stanley Bennett
Gordon Rudkin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Birmingham Small Arms Co Ltd
Original Assignee
Birmingham Small Arms Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Birmingham Small Arms Co Ltd filed Critical Birmingham Small Arms Co Ltd
Priority to GB3244055A priority Critical patent/GB799531A/en
Priority to FR1160252D priority patent/FR1160252A/en
Publication of GB799531A publication Critical patent/GB799531A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/14—Electric circuits specially adapted therefor, e.g. power supply
    • B23H7/18—Electric circuits specially adapted therefor, e.g. power supply for maintaining or controlling the desired spacing between electrode and workpiece

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

799,531. Machining by spark discharge. BIRMINGHAM SMALL ARMS CO., Ltd. Nov. 1, 1956 [Nov. 14, 1955], No. 32440/55. Class 83 (4). [Also in Group XXXV] In a spark machining apparatus, the electrode feed is effected by a split-field electric motor, one field of which is connected across the electrode gap and the other is connected in parallel with the charging resistor. A capacitor 16 is connected across the gap between the electrode 6 and the workpiece 1, and is charged over resistors 14, 15 from a D.C. source 5. Additional capacitors 16a, 16b may be optionally selected for rough machining. The electrode 6 is fed by the split-field motor 12 having its armature connected to the D.C. source 5, one field 20a in parallel with the charging resistors 14, 15, and the other field 20b across the gap. Variable resistors 21, 22a, 22b enable the sensitivity to be set for either direction of operation.
GB3244055A 1955-11-14 1955-11-14 Improvements in or relating to spark machining Expired GB799531A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3244055A GB799531A (en) 1955-11-14 1955-11-14 Improvements in or relating to spark machining
FR1160252D FR1160252A (en) 1955-11-14 1956-11-13 Flash machining installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3244055A GB799531A (en) 1955-11-14 1955-11-14 Improvements in or relating to spark machining

Publications (1)

Publication Number Publication Date
GB799531A true GB799531A (en) 1958-08-13

Family

ID=10338632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3244055A Expired GB799531A (en) 1955-11-14 1955-11-14 Improvements in or relating to spark machining

Country Status (2)

Country Link
FR (1) FR1160252A (en)
GB (1) GB799531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341678A (en) * 1959-12-29 1967-09-12 Linderfort Ltd Spark erosion machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341678A (en) * 1959-12-29 1967-09-12 Linderfort Ltd Spark erosion machine

Also Published As

Publication number Publication date
FR1160252A (en) 1958-07-10

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